Riello RTT 76 Bedienungsanleitung
cod. Doc-0079320 rev. 0 03/2016
RT T 76-145
EN ASSEMBLY MANUAL
2
RANGE
MODEL CODE
RTT 76 20091179
RTT 93 20091181
RTT 110 20091187
RTT 128 20091189
RTT 145 20091193
ACCESSORIES
For the RTT 76-145 r boilers the following accessories are avai-
lable:
a. Two stage kit – 4031067
b. Storage heater probe – 20010103
In some parts of the booklet, some symbols are used:
9 = for actions requiring special care and adequate preparation
0 = for actions THAT MUST NOT be performed
Dear client,
Thank you for choosing a Riello boiler, a modern and high qua-
lity product, providing you with the utmost well-being and with
a high level of reliability and safety; and this is particularly the
case if entrusted to a Riello Technical Assistance Centre which is
specically capable of carrying out routine maintenance, keep
it running at maximum efciency, with low running costs and
which has original spare parts if required.
This instruction booklet contains important information and
suggestions that should be observed for easy installation and
better use of the RTT 76-145 boiler.
Thank you once again
Riello S.p.A.
CONFORMITY
TheRTT 76-145 r boilers comply with:
−2009/142/EC (ex 90/396/EEC-Gas Directive)
−92/42/EEC (Efciency Directive)
−2006/95/EC (ex 73/23/EEC-Low voltage Directive)
−2004/108/EC (ex 89/336/EEC-Electromagnetic Compatibility
Directive)
−EN 303/1-2-3
−EN 60335-1/2
−EN55014-1/2
−EN 61000
This booklet, Cod. Doc-0079320 - Rev. 0 (03/2016) is composed of 12 pages.
3
1.1 INSTALLATION SPECIFICATIONS OF RTT CAST IRON
BOILERS
This installation manual is for certied and authorised installers
and technical assistance personnel, operating domestically and
abroad. The manual has the purpose that the cast iron boiler is
installed correctly.
9 Make sure that the room where the installation will occur
is suitable for the minimum dimensions set out in the bur-
ner's instruction booklet and that the base on which the
boiler will sit is adequate for its weight and dimensions.
9 It is the responsibility of the installers to ensure the neces-
sary safety conditions during all the assembly and installa-
tion phases; if the conditions are not optimal, adopt the ne-
cessary corrective measures before starting the installation.
9 The installation of the ON range cast iron boilers requires at
least 2 people, pay particular attention to the handling of
heavy components, in order to prevent the risk of injury to
people and damage to objects.
9 The boiler is supplied with all its components and some
installation equipment, the following assembly material is
included: silicon, applicator, brush, sealant for couplings,
Blakite, gloves and face mask
9 Carefully read the manual before installation, for any clari-
cations do not hesitate to contact the technicians of the
manufacturer or the retailer.
9 Be careful not to damage the painted components (body
and boiler cladding) when handling, assembling and when
connecting the burner and the ue gas pipe. Make sure that
all the technicians are aware of these warnings.
Thanking you for taking the time needed to read these in-
structions, we hope your installation goes well and we would
like to remind you that a good installation will ensure the boiler
continues to run well over time.
4
• If you do not have one, create a base suitable for the weight
and size of the boiler it needs to support, respecting the
provisions and the dimensions indicated in the technical
manual.
• Fix the rear element on the boiler base to the ground using
dowels.
• Clean the grooved prole of the ue gas seal of the rear ele-
ment with a brush or with a cloth and then ll it with silicon.
• Insert the insulating cord already ready in the groove as
shown in the illustration and x it with the silicon that was
applied previously.
(Repeat the operations for the successive elements).
• Clean the housings of the ttings of the rear element and
put the sealing coating on them (in orange) to improve their
seal.
(Repeat the same operations for all the intermediate elements
and the front element).
• Clean the surfaces of the couplings and apply the sealant
coating on the surfaces that come into contact with the rear
element to enhance the seal. Insert the coupling into the
element.
(Repeat the operations for the all the couplings).
5
• Depending on the boiler model (number of intermediate
elements), the assembly operations described will have to
be repeated for each of the unnumbered intermediate ele-
ments.
• In the RTT-93, RTT-110, RTT-128 and RTT-145 boilers the as-
sembly direction is indicated by an arrow and white paint
signs on the elements.
• The last two intermediate elements are marked by the
numbers 3, 2 and they should all be assembled in the same
direction, which is shown.
• Once the assembly of the unnumbered intermediate ele-
ments has been completed, mount the intermediate ele-
ment with the number 3, followed by the intermediate ele-
ment 2.
• For clarication of the assembly sequence, see the gure
• The front element, marked with the number 1, is the last one
to be tted.
6
• Once all the elements have been tted, insert the M10
locking tie-rods in the relative holes and tighten the nuts at
the ends to reduce the play between the elements, pressing
on the insulating cords.
• Tightening torque: 5 Kg·m
• Fill the boiler with water and carry out a hydraulic test at a
pressure lower than 9 bar.
• Apply Blakite between the elements to ll the empty spaces.
• Check the gas seal along the lines of contact between the
elements. This check can be carried out with a mobile light
or a projector. Light the inside of the boiler and observe it
from the outside. Apply Blakite to the points that let light
lter through to the outside.
• In the RTT boilers, the water inlet and outlet connections are
supplied already installed on the rear element. The ue gas
pipe is xed using 2 threaded bars, washers and nuts.
• The size of the ue gas pipe varies according to the following
table:
Boiler model RTT 76 RTT 93 RTT 110 RTT 128 RTT 145
Flue gas pipe
dimensions
150 150 180 180 180
• The front element has holes for mounting the two hinges of
the burner door. The side the hinges are tted depends on
the desired opening direction of the door.
• The hinges and pins are stabilised with nuts and washers.
7
• For each RTT boiler there are 2 retarder diffuser disc holder
assemblies in the third passage of the boiler ue gases.
• The diffuser disc holder assemblies should be xed before
the installation of the burner door, and are xed using spe-
cial pins to prevent them sliding inside.
• Connect the door of the burner to the threaded bars inser-
ted in the hinges, t the washers and tighten the lock nuts
until the pressure of the insulating cord on the prole of the
front element can be felt.
• Depending on the opening side of the door, insert 2 M8 x
60 screws in the hole of the hinges and x them with nuts
from the bottom.
• When the burner door has been tted, the assembly of the
boiler body is nished.
• Use a 2 point stainless steel wire to connect the insulation to
the boiler body in such a way that it is stable.
8
• Once the insulation has been applied, you can proceed with
the assembly of the casing.
• Insert 8 M8 x 40 screws into the assembly holes of the panels
of the casing on the front element and on the rear element.
• The screws should be inserted in such a way that the heads
are on the inside and the threads on the outside. Set the
side panels holes so that they line up with the screws of the
front and rear elements, then insert the washer and tighten
the nuts.
After installing the side walls, connect the control panel on
the top front wall of the casing.
• Insert the thermocouples (sensors) of the control panel
(thermostat, safety thermostat, thermometer) in the slots of
the panel.
• Rest the two support brackets on the top panel, with the
side with more holes facing upwards and lining up the ho-
les of the bottom side of the bracket with those of the cover
panel.
• Fix each bracket with three self-tapping screws 4.2x9.5 (not
supplied).
• Remove the cover of the electrical panel.
• Place the base of the control panel on the support brackets,
matching up the holes, then use six self-tapping screws
(supplied with the electrical panel) to secure it.
• After inserting the ends of the sensors, secure them so they
do not come out, then put back the cover of the control pa-
nel on the base.
• Put the oil supplied in the hole of the thermostat so as to
improve the sensitivity of the sensors.
9
• Fit the top panel into the slots of the casing by inserting the
four pins into the corresponding holes on the side panels.
• After tting the top and side panels of the casing, proceed
to install the rear panel.
• First of all, apply the insulation on the rear side of the boiler.
The rear panel is composed of two parts that should be xed
with screws to the side panels.
• With the installation of the rear panel, the assembly of the
casing is complete.
• Once the assembly of the body, the control unit and the ca-
sing is nished, the boiler is ready for the installation of the
burner and the connections to the system and to the ue
gas pipe.
• The installation of the burner and the connections to the
system and the ue gas pipe should be carried out by an
authorised technician, in conformity with the regulations
and specications contained in the use and maintenance
manual.
10
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